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