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