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