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