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