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