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