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