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