One vertex per element, one color per generator, with an edge from x to x·s.
(2,6)(7,8)(9,10)(11,14)(12,16)(13,15)(17,18,23,28,24,19,29,32,22,27,37,43,21,31,25,38)(20,26,35,42,33,30,44,45,34,41,46,48,36,40,39,47)(1,2)(3,7)(4,8)(5,6)(9,11,13,12)(10,14,15,16)(17,19,23,32,24,27,29,43,22,31,37,38,21,18,25,28)(20,30,35,45,33,41,44,48,34,40,46,47,36,26,39,42)(1,3,5,4)(2,7,6,8)(9,12,13,11)(10,14,15,16)(17,20,22,34)(18,26,27,41)(19,30,31,40)(21,36,24,33)(23,35,37,46)(25,39,29,44)(28,42,43,48)(32,45,38,47)(1,4,5,3)(2,7,6,8)(17,21,22,24)(18,19,27,31)(20,33,34,36)(23,25,37,29)(26,40,41,30)(28,32,43,38)(35,44,46,39)(42,47,48,45)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.