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