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