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