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