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