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