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