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