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