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