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