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