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