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