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)(11,13)(12,14)(15,16)(17,18,24,31,23,26,22,25)(19,27,21,20,28,32,29,30)(9,10)(11,15)(12,14)(13,16)(17,19,23,28)(18,20,26,30)(21,24,29,22)(25,32,31,27)(1,3,5,4)(2,6,7,8)(9,11,12,16)(10,13,14,15)(17,20)(18,19)(21,31)(22,27)(23,30)(24,32)(25,29)(26,28)(11,16)(13,15)(17,21,22,19,23,29,24,28)(18,20,25,27,26,30,31,32)(1,4,5,3)(2,6,7,8)(10,14)(13,15)(19,28)(20,30)(21,29)(27,32)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.