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