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