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