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