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