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