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