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