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