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