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