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