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