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