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