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