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