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