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