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