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