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