One vertex per element, one color per generator, with an edge from x to x·s.
(2,3)(5,6,10,14,9,13,16,19)(7,15,17,12,8,11,18,20)(21,22,24,29,25,28,30,27)(23,26,32,33,31,34,36,35)(1,2,4,3)(5,7,16,18,9,8,10,17)(6,11,19,12,13,15,14,20)(21,23,30,36,25,31,24,32)(22,26,27,35,28,34,29,33)(5,8,9,7)(6,12,13,20)(10,17,16,18)(11,14,15,19)(22,27)(23,31)(24,30)(26,33)(28,29)(34,35)(1,3,4,2)(22,28)(26,34)(27,29)(33,35)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.