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