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)(17,18,21,24)(19,22,27,25)(20,23,29,26)(28,31,30,32)(1,3,6,13)(2,7,10,15)(4,12,5,14)(8,11,9,16)(18,22)(19,27)(20,29)(23,31)(24,25)(26,32)(4,5)(8,9)(11,16)(12,14)(18,23)(20,29)(22,31)(24,26)(25,32)(28,30) involution — undirected(1,4,6,5)(2,8,10,9)(3,12,13,14)(7,11,15,16)(18,24)(22,25)(23,26)(31,32)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.