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