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