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