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)(11,13)(12,14)(15,16)(17,18,22,25)(19,23,21,30)(20,27,29,31)(24,28,32,26)(1,3)(2,6)(4,7)(5,8)(9,10)(11,15)(12,14)(13,16)(17,19,22,21)(18,23,25,30)(20,28,29,26)(24,27,32,31)(9,11,12,16)(10,13,14,15)(17,20)(18,24)(19,26)(21,28)(22,29)(23,31)(25,32)(27,30)(1,2,5,4)(3,7,8,6)(11,16)(13,15)(20,29)(24,32)(26,28)(27,31)(1,4,5,2)(3,7,8,6)(10,14)(13,15)(18,25)(23,30)(24,32)(27,31)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.