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