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)(9,13)(10,14)(15,18)(16,19)(17,20)(21,22,26,28)(23,30,31,33)(24,32,27,35)(25,34,36,29)(2,4)(5,7,10,17)(6,11,14,20)(8,16,9,15)(12,19,13,18)(21,23,26,31)(22,27,28,24)(25,35,36,32)(29,33,34,30)(5,8,10,9)(6,12,14,13)(7,15,17,16)(11,18,20,19)(21,24,26,27)(22,23,28,31)(25,30,36,33)(29,35,34,32)(5,9,10,8)(6,13,14,12)(7,16,17,15)(11,19,20,18)(22,28)(23,31)(29,34)(32,35)(6,14)(11,20)(12,13)(18,19)(22,28)(23,31)(29,34)(32,35) 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.