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