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