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