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