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