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