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