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)(21,22,26,31,27,32,34,36)(23,29,33,35,24,25,30,28)(5,7)(6,10)(8,15)(9,14)(11,19)(12,18)(13,16)(17,20)(21,23)(22,28)(24,27)(25,31)(26,30)(29,36)(32,35)(33,34) involution — undirected(1,2,3,4)(5,8)(6,11)(7,13)(9,16)(10,17)(12,20)(14,15)(18,19)(21,24,27,23)(22,29,32,25)(26,30,34,33)(28,31,35,36)(8,16)(11,20)(13,15)(17,19)(21,25,34,35,27,29,26,28)(22,30,36,24,32,33,31,23)(6,12)(7,14)(11,20)(13,15)(23,24)(25,29)(28,35)(30,33) 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.