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