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