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