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