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