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