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