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