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