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