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