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