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