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