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