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