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