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