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