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