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