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