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