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