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