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