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