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