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)(17,18)(19,23)(20,27)(21,29)(22,25)(24,26)(28,31)(30,32)(2,7)(3,11)(4,5)(8,15)(9,10)(12,13)(17,19,22,21)(18,23,25,29)(20,26,28,30)(24,31,32,27)(17,20,22,28)(18,24,25,32)(19,26,21,30)(23,31,29,27)(1,3)(2,8)(4,11)(5,13)(6,12)(7,14)(9,16)(10,15) involution — undirected(1,4,6,5)(2,7,10,9)(3,11,12,13)(8,14,15,16)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.