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)(18,22)(20,27)(23,28)(26,31)(33,34,37,40)(35,41,43,38)(36,39,45,48)(42,47,44,46)(1,2,6,3)(4,9,11,7)(5,10,13,8)(12,14,16,15)(19,25)(23,28)(26,31)(30,32)(33,35,37,43)(34,38,40,41)(36,44,45,42)(39,47,48,46)(2,3)(4,11)(8,10)(12,16)(17,18,21,22)(19,23,25,28)(20,24,27,29)(26,30,31,32)(33,35)(34,38)(36,42)(37,43)(39,46)(40,41)(44,45)(47,48)(1,3,6,2)(4,9,11,7)(5,10,13,8)(12,15,16,14)(33,34)(35,38)(36,39)(37,40)(41,43)(42,46)(44,47)(45,48)(1,4,6,11)(2,7,3,9)(5,12,13,16)(8,14,10,15)(17,19)(18,23)(20,26)(21,25)(22,28)(24,30)(27,31)(29,32)(33,36,37,45)(34,39,40,48)(35,42,43,44)(38,46,41,47)(1,5,6,13)(2,8,3,10)(4,12,11,16)(7,14,9,15)(17,20)(18,24)(19,26)(21,27)(22,29)(23,30)(25,31)(28,32)(33,34)(35,38)(36,39)(37,40)(41,43)(42,46)(44,47)(45,48)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.