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