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