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