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