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