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