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