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