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