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