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