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