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