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