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