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