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