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