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