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