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