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