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