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