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