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