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