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