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