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