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