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