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