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