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