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