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