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