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