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