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