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