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