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