If I was suggesting, I'd suggest removing all the extra words, and stick to the generally agreed abbreviations:
L, R, S, X (cross), BL, BR (bear left, bear right, alternatively VL, VR, where V is veer).
The "on" and "on to" are similarly redundant.
Other cue sheets I've seen have also included SS (stop sign), SL (stop light), and T (T intersection) as additional directional cues.
The older eyes also request a bigger font :-)