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