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