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