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