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)(15,19)(16,18)(17,20)(21,22,26,24)(23,29,30,27)(25,32,33,28)(31,34,36,35)(2,4)(6,9)(10,11)(13,14,16,18)(15,17,20,19)(22,24)(23,30)(25,33)(34,35)(1,2)(3,4)(21,23,26,30)(22,27,24,29)(25,31,33,36)(28,34,32,35)(5,7)(6,10)(8,12)(9,11)(13,15)(14,17)(16,20)(18,19)(21,24,26,22)(23,29,30,27)(25,28,33,32)(31,34,36,35)(5,6)(7,11)(8,9)(10,12)(13,14)(15,19)(16,18)(17,20)(21,25,26,33)(22,28,24,32)(23,31,30,36)(27,34,29,35)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.