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