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