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