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