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