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