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