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