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