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