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