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