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