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