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