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