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