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