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