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)(21,22,27,31)(23,32,34,36)(24,29,26,33)(25,30,28,35)(5,7)(6,10)(8,15)(9,14)(11,19)(12,18)(13,16)(17,20)(21,23,24,35,27,34,26,30)(22,28,33,36,31,25,29,32)(2,4)(5,8,9,16)(6,11,12,20)(7,13,14,15)(10,17,18,19)(21,24,27,26)(22,29,31,33)(23,30,34,35)(25,32,28,36)(7,14)(10,18)(13,15)(17,19)(21,25)(22,30)(23,33)(24,32)(26,36)(27,28)(29,34)(31,35) involution — undirected(6,12)(10,18)(11,20)(17,19)(22,31)(25,28)(29,33)(32,36) 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.