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