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