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