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