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