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