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