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