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