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