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