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