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