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