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