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