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