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