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