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