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