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