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