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