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