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