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)(17,18,23,20)(19,24,26,22)(21,25,31,28)(27,32,29,30)(34,37)(35,36)(42,45)(43,44)(1,3,7,4)(2,8,5,9)(6,11,14,12)(10,15,13,16)(17,19,23,26)(18,24,20,22)(21,29,31,27)(25,30,28,32)(33,34,39,37)(35,41,36,40)(38,42,46,45)(43,48,44,47)(6,14)(10,13)(11,12)(15,16)(19,26)(22,24)(27,29)(30,32)(33,35,39,36)(34,40,37,41)(38,43,46,44)(42,47,45,48)(1,4,7,3)(2,9,5,8)(6,12,14,11)(10,16,13,15)(17,20,23,18)(19,22,26,24)(21,25,31,28)(27,32,29,30)(33,36,39,35)(34,41,37,40)(38,44,46,43)(42,48,45,47)(1,5,7,2)(3,8,4,9)(6,13,14,10)(11,15,12,16)(17,21,23,31)(18,25,20,28)(19,27,26,29)(22,30,24,32)(33,37,39,34)(35,41,36,40)(38,45,46,42)(43,48,44,47)(1,6,7,14)(2,10,5,13)(3,11,4,12)(8,15,9,16)(17,22)(18,19)(20,26)(21,30)(23,24)(25,27)(28,29)(31,32)(33,38,39,46)(34,42,37,45)(35,43,36,44)(40,47,41,48)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.