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