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