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