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