One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,4,11,6,5,25,28,8,13,27,42,32,29,12,43,9,14,7,33,26,30,31,24,35,45,34,60,61,62,44,50)(3,15,16,46,18,40,51,63,21,49,19,55,52,41,57,64,22,17,53,54,20,48,38,39,58,56,23,47,59,10,36,37)(1,3,5,17,7,19,28,55,6,20,13,40,31,36,42,37,8,21,29,56,34,53,43,54,32,59,14,41,44,51,33,63,9,22,30,15,4,23,24,47,26,18,45,48,25,57,60,64,35,58,62,49,27,16,50,46,61,52,2,10,12,38,11,39)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.