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