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