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