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