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