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