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