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