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