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