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