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