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