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