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