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