Cylinder numbering when at front of the car facing engine:
Left Bank 1-2-3-4
Right Bank 5-6-7-8

Firing order: 1-3-7-2-6-5-4-8

This shows the marker which indicates the firing on the #1

Plug wire orientation, what more can you ask for (source unknown):

4-6-7-1 passenger side:

5-2-3-8 driver side

all together