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