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