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