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