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