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