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