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