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