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