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