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