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