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