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