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