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