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