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