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