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