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