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