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