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