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