On my cards I taped a piece of red paper between A-B and green paper between D-C. The red and green lines in the diagrams show where you have to flip some of the cards (a little triangle).
For the warping I keep ABCD on the right side, no matter if it is S or Z. Instead of using these letters where to warp I use the position. It is marked in Dutch and means Up (B), Down (O), Front (V) and Back (A).
The loom has a whole bunch of nails so it is easy to put each group of 4 threads on their right place. After the warping it is just a matter of putting all the cards with ABCD to the right and 'voilà' it's done.