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