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