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