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