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