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