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