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