Riff 1:
E|-------------------------------------9---------------------|
B|-------------------7--7--9--7--9--10---9--7--9--7----------|
G|----8--8--9--8--9------------------------------------------|
D|-----------------------------------------------------------|
A|-----------------------------------------------------------|
E|-----------------------------------------------------------|

E|-------------------------------------7---------------------|
B|-------------------7--7--9--7--9--10---9--7----------------|
G|----8--8--9--8--9---------------------------9--8-----------|
D|-----------------------------------------------------------|
A|-----------------------------------------------------------|
E|-----------------------------------------------------------|


Riff 2:
E|-----------------------------------------------------------|
B|-----------------------------------------------------------|
G|---11--9--8---------------11--9--8-------------------------|
D|------------9--6--8--4-------------9--6--8--9--------------|
A|-----------------------------------------------------------|
E|-----------------------------------------------------------|


This is a simplistic version of what is played through a lot of the lyrics, although there are a number of other licks and riffs that are played throughout the song:

E|--7--9--7--5--4----7--9--7--5--4----7--9--7--5--4----0--2--0----------0--2--0-----------|
B|-------------------------------------------------------------3--2-------------3--2------|
G|----------------------------------------------------------------------------------------|
D|----------------------------------------------------------------------------------------|
A|----------------------------------------------------------------------------------------|
E|----------------------------------------------------------------------------------------|

E|--2--4--2--------2--4--2---------7--9--7--5--4----7--9--7--5--4-------------------------|
B|----------5--6-----------5--6-----------------------------------------------------------|
G|----------------------------------------------------------------------------------------|
D|----------------------------------------------------------------------------------------|
A|----------------------------------------------------------------------------------------|
E|----------------------------------------------------------------------------------------|