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