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