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