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