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