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