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