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