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