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