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