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