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