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