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