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