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