Riff 1
G|-------------------| 
D|-------------------| 
A|-------------------| x1
E|---0----0--0--0----|

Riff 2
G|-------------------|
D|-------------------| 
A|-------7-8/10-8-7--| x1
E|--0--5-------------|

Main Riff
G|--------------------|
D|--------------------|
A|-------7-8/10-8-7---| x7
E|--0005--------------| 

Repeat as needed. The song sequence is Riff 1, Riff 2 and then the Main Riff throughout the whole song. 

End On
G|----|
D|----|
A|----|
E|-0--|