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