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