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