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