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