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