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