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