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