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