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