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