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