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