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