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