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