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