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