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