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