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