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