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