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