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