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