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