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