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