This is the main riff in the song. 
e|---------------------------------------------------------------------------| 
B|---------------------------------------------------------------------------| 
G|---6-6-6-6--6-6-6-6--3-3-3-3-3-3-3-6---------------------------------------| 
D|---6-6-6-6--6-6-6-6--3-3-3-3-3-3-3-6---------------------------------------| 
A|---4-4-4-4--3-3-3-3--1-1-1-1-1-1-1-3---------------------------------------| 
E|---------------------------------------------------------------------------| 

Other Riff
e|---------------------------------------------------------------------------| 
B|---------------------------------------------------------------------------| 
G|---6-6-6-6-6-6-6-6-------------------6-6-6-6-6-6-6-6-----------------------| 
D|---6-6-6-6-6-6-6-6--3-3-3-3-3-3-3-3--6-6-6-6-6-6-6-6--3-3-3-3-3-3-3-3------| 
A|---4-4-4-4-4-4-4-4--3-3-3-3-3-3-3-3--4-4-4-4-4-4-4-4--3-3-3-3-3-3-3-3------| 
E|--------------------1-1-1-1-1-1-1-1-------------------1-1-1-1-1-1-1-1------| 

e|---------------------------------------------------------------------------| 
B|---------------------------------------------------------------------------| 
G|---3-3-3-3-3-3-3-3---------------------------------------------------------| 
D|---3-3-3-3-3-3-3-3--3-3-3-3-3-3-3-3--4-4-4-4-4-4-4-4--3-3-3-3-3-3-3-3------| 
A|---1-1-1-1-1-1-1-1--3-3-3-3-3-3-3-3--4-4-4-4-4-4-4-4--3-3-3-3-3-3-3-3------| 
E|--------------------1-1-1-1-1-1-1-1--2-2-2-2-2-2-2-2--1-1-1-1-1-1-1-1------| 

you'll have to work the exact number of strums out your self as i don't think i got them exact :/