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