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