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