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