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