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