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)(23,31)(24,34)(25,35)(26,30)(27,28)(29,32)(33,36)(1,2)(3,4)(5,7,10,6)(8,12,17,15)(9,14,11,13)(16,19,18,20)(21,23,26,27)(22,28,30,31)(24,32,25,33)(29,34,36,35)(2,4)(5,8,10,17)(6,12,7,15)(9,16,11,18)(13,19,14,20)(21,24,26,25)(22,29,30,36)(23,32,27,33)(28,34,31,35)(6,13)(7,14)(9,11)(12,19)(15,20)(16,18)(21,25,26,24)(22,29,30,36)(23,33,27,32)(28,34,31,35)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.