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