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