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