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