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