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