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