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