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