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