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