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