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