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