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