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