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