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