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