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