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