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