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