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