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