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