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