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