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