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)(11,13)(12,14)(15,16)(17,18,23,37,21,24,22,27)(19,28,36,25,29,43,31,39)(20,32,38,42,34,26,35,47)(30,45,48,41,33,44,46,40)(1,3,5,8)(2,6,4,7)(9,10)(11,15)(12,14)(13,16)(18,24)(19,29)(26,32)(27,37)(30,33)(31,36)(42,47)(46,48)(9,11)(10,13)(12,16)(14,15)(17,19,21,29)(18,25,24,39)(20,33,34,30)(22,36,23,31)(26,41,32,40)(27,43,37,28)(35,46,38,48)(42,44,47,45)(1,4,5,2)(3,6,8,7)(11,16)(13,15)(17,20,21,34)(18,26,24,32)(19,30,29,33)(22,35,23,38)(25,40,39,41)(27,42,37,47)(28,44,43,45)(31,46,36,48)(10,14)(13,15)(18,24)(20,34)(25,39)(27,37)(28,43)(30,33)(35,38)(46,48) 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.