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