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