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