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