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