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