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