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