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