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