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