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