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