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