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