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