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