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