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