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