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