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