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