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