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