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)(17,18,21,25,22,24,30,20)(19,23,26,27,28,31,32,29)(2,5)(6,8)(18,20)(19,26)(21,30)(24,25)(27,29)(28,32) involution — undirected(1,3,4,7)(2,6,5,8)(10,13)(14,16)(17,19,21,26,22,28,30,32)(18,23,25,27,24,31,20,29)(17,20,30,24,22,25,21,18)(19,27,32,23,28,29,26,31)(9,11,12,15)(10,14,13,16)(18,24)(20,25)(23,31)(27,29)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.